On Thu, 12 Sep 2024 15:04:15 -0400
Lyude Paul <lyude@redhat.com> wrote:
> This adds a simple interface for disabling and enabling CPUs, along with
> the ability to mark a function as expecting interrupts be disabled -
> along with adding bindings for spin_lock_irqsave/spin_lock_irqrestore().
>
> Current example usecase (very much WIP driver) in rvkms:
>
> https://gitlab.freedesktop.org/lyudess/linux/-/commits/rvkms-example-08012024
>
> specifically drivers/gpu/drm/rvkms/crtc.rs
>
> Lyude Paul (3):
> rust: Introduce irq module
> rust: sync: Introduce lock::Backend::Context
> rust: sync: Add SpinLockIrq
>
> rust/helpers/helpers.c | 1 +
> rust/helpers/irq.c | 22 +++++++
> rust/kernel/irq.rs | 90 +++++++++++++++++++++++++
> rust/kernel/lib.rs | 1 +
> rust/kernel/sync.rs | 2 +-
> rust/kernel/sync/lock.rs | 17 ++++-
> rust/kernel/sync/lock/mutex.rs | 1 +
> rust/kernel/sync/lock/spinlock.rs | 105 ++++++++++++++++++++++++++++++
> 8 files changed, 236 insertions(+), 3 deletions(-)
> create mode 100644 rust/helpers/irq.c
> create mode 100644 rust/kernel/irq.rs
>
>
> base-commit: 93dc3be19450447a3a7090bd1dfb9f3daac3e8d2
With the invariant documentation of `IrqDisabled` fixed:
Reviewed-by: Gary Guo <gary@garyguo.net>